How do you identidy the development of society? write in a sentence​

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

What would you call a political system that is only meant to last for a short time

What was one step that charlemagne took to unite his kingdom? a. he chose a single strong heir to inherit his throne. b. he drove muslim forces out of europe. c. he created and supported schools. d. he declared himself head of the catholic church.